3905740

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{487}}^1$

素因数の和:897

約数の個数: 24

約数和(自身を含む): 8239392

約数和(自身を除く): 4333652

約数列:

[1, 2, 4, 5, 10, 20, 401, 487, 802, 974, 1604, 1948, 2005, 2435, 4010, 4870, 8020, 9740, 195287, 390574, 781148, 976435, 1952870, 3905740]

約数ペア:

[(1, 3905740), (2, 1952870), (4, 976435), (5, 781148), (10, 390574), (20, 195287), (401, 9740), (487, 8020), (802, 4870), (974, 4010), (1604, 2435), (1948, 2005)]